Inlet Check Valve Assembly Back Catalog number: CTS-0720 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21591 PM Kit, G4226A Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request